JPS6233365A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To attain special operation such as reproduction inhibition and recording inhibition with respect to optional information by executing the operation relating to an instruction only when the operation of a region of a recording medium and the operation relating to the instruction are coincident. CONSTITUTION:When an instruction including an address and any operation of recording or reproduction is given from a control section 1 to operate a disc whose region is set, the instruction is inputted to a judgment section 5 via an interface 6. The judgment section 5 compares and judges the address operation relating to the instruction and information relating to the address operation set and stored by a setting section 7 and when the operation of the address sector relating to the instruction and the operation relating to the instruction are coincident, the judgement section 5 gives a control signal to a recording/reproducing section 4 to execute the operation relating to the instruction. When the operation of the address region is not coincident with the operation relating to the instruction, the inhibition of the instruction is sent to the control section 1 via the interface 6. Thus, the special operation such as recording inhibition and reproduction inhibition is applied to optional information in a recording medium.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information recording/reproducing apparatus for recording and reproducing information on a recording medium such as an optical disk or a magnetic disk.

[Summary of the invention]

The present invention is an information recording and reproducing device that is capable of recording or reproducing information at any designated address, and also has an area where only reproducing operation is possible, an area where only recording operation is possible, and an area where only recording operation is possible. a recording medium that is divided into at least two different areas among the areas in which both reproduction operations are possible; a recording and reproducing means for recording and reproducing information on the recording medium;
comprising a control means for issuing a command regarding either a recording operation or a reproduction operation and an address, and a determination means for comparing and determining an operation in an address area according to the command of the recording medium and an operation according to the command, The operation related to the command is executed only when the operation in the area of the recording medium matches the operation related to the command, thereby prohibiting recording (erasing) on one recording medium.

This allows special operations such as prohibition of reproduction to be performed on arbitrary information.

[Conventional technology]

BACKGROUND ART Recording media such as optical disks and magnetic disks include those that can only be reproduced and those that can be used for both recording and reproduction. For example, video discs, digital audio discs, etc. cannot be recorded, but only playback is possible, while optical file discs, magnetic discs, etc. are capable of both recording and playback. For example, in the case of a floppy disk or the like, by performing a predetermined process (write protection), it is possible to prohibit future recording of information.

[Problem that the invention seeks to solve]

However, with conventional disks, for example, when write protection is applied, the effect extends to the entire area of the disk, and recording (erasing) is performed only at predetermined addresses.
could not be prohibited. Therefore, it is difficult for the user to perform special operations such as inhibiting reproduction or inhibiting recording of arbitrary information on a single disc.

[Means for Solving the Problems] FIG. 1 is a block diagram of an information recording/reproducing apparatus according to the present invention. In the figure, reference numeral 1 denotes a control section consisting of, for example, a computer, which controls the operation of the recording/reproducing device 2. As shown in FIG. The control unit 1 may be provided outside the recording/reproducing device 2, or may be provided integrally within the recording/reproducing device 2.

The recording and reproducing device 2 has a disk 3 as a recording medium and a recording and reproducing section 4 that records and reproduces information on the disk 3.

Reference numeral 5 denotes a determining section, which compares and determines the information from the recording/reproducing section 4 and the information input from the control section 1 via the interface 6, and controls the operation of the recording/reproducing section 4. Reference numeral 7 denotes a setting section through which predetermined information can be set and input.

[Effect]

However, to explain its operation, for example, the recording/reproducing device 2
When manufacturing the recording and reproducing apparatus 2, the manufacturer operates the setting section 7 to set and store information regarding a predetermined address and recording or reproducing operation. That is, for example, an address for which recording is prohibited, an address for which recording and reproduction is possible, and an address for which reproduction is prohibited are input. As a result, as shown in FIG. 2, the disc 3 has an area 11 where recording is prohibited and only playback is possible, an area 12 where both recording and playback are possible, and an area where playback is prohibited and only recording is possible. 13 (of course, each area may be separated) 0 A write-prohibited area 11 is an area where data that should not be erased, such as data at the time of shipment of the disk, recognition data, etc., is recorded.
Furthermore, an area in which confidential data or the like is recorded can be set as a reproduction prohibited area 13.

When a command including an address and either a recording operation or a playback operation is issued from the control unit 1 in order to operate a disc on which such an area has been set, this command is sent to the determination unit 5 via the interface 6. is input. At this time, the judgment section S determines the operation of the address related to the instruction and the setting section 7.
A comparison is made with information regarding the operation of the address set and stored in the address. When the operation in the area of the address related to the instruction matches the operation related to the instruction (when a recording operation is commanded, the address is the address of area 12 or 13, and when a playback operation is commanded, the address is the address of area 11 or 12), the determining section 5 issues a control signal to the recording/reproducing section 4, and causes the recording/reproducing section 4 to execute the operation (recording operation or reproducing operation) according to the command. On the other hand, when the operation of the area of the address related to the instruction does not match the operation related to the instruction (when a recording operation is commanded, the address is the address of area 11, and when a playback operation is commanded, the address is the address of area 11) (When the address is in area 13)
, the determining unit 5 transmits to the control unit 1 via the interface 6 that the command is prohibited in the setting unit 7 . At this time, the control unit 1 displays this to the user via a predetermined display means. When the user changes the address or operation, the same judgment is made again, and if the operation in the area of the address related to the instruction matches the operation related to the instruction, the instruction is executed.

When an input to cancel the inhibited state is made in the setting section 7, the operation commanded by the control section 1 is executed as is. Therefore, if the setting section 7 is provided in a position where it is relatively difficult for general users to operate it, such as inside the recording/reproducing device 2,
During repairs, etc., only a specific person can record and reproduce predetermined information as needed.

In the above description, the information regarding the operation for a predetermined address is set and stored in the setting section 7, but it may also be recorded on the disk 3.

〔effect〕

As described above, the present invention provides an information recording and reproducing apparatus that is capable of recording or reproducing information at any designated address, and also has an area where only reproducing operation is possible, an area where only recording operation is possible, A recording medium divided into at least two different areas capable of both recording and reproducing operations, a recording and reproducing means for recording and reproducing information on the recording medium, and a recording medium that is capable of performing either recording or reproducing operation. A control means for issuing a command related to an operation and an address, and a judgment means for comparing and determining an operation in an address area related to the instruction of the recording medium and an operation related to the instruction, are provided. Since the operation related to the command is executed only when the two match, special operations such as prohibition of recording (erasing) and prohibition of reproduction can be performed on arbitrary information on one recording medium.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the information recording and reproducing apparatus of the present invention, and FIG.
The figure is a schematic plan view showing the division of areas of the recording medium. DESCRIPTION OF SYMBOLS 1...Control part 2...Recording/reproducing device 3...Disc 4...Recording/reproducing part 5...Judgment part 6...
・Interface 7...Setting section 11.12.13...Area and above

Claims (1)

[Claims] It is possible to record or reproduce information at any specified address, and there are areas where only reproduction operations are possible, areas where only recording operations are possible, and areas where both recording and reproduction operations are possible. A recording medium divided into at least two different areas, a recording and reproducing means for recording and reproducing the information on the recording medium, and instructions regarding either the recording operation or the reproducing operation and the address. and a determining means that compares and judges the operation of the area of the address related to the instruction of the recording medium and the operation related to the instruction, An information recording/reproducing apparatus characterized in that an operation related to the instruction is executed only when the operations related to the instruction match.